| Geometric Feature Extraction and Model Reconstruction Based on Scattered Data |
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| 引用本文： | 胡鑫,习俊通,金烨. Geometric Feature Extraction and Model Reconstruction Based on Scattered Data[J]. 东华大学学报(英文版), 2004, 21(4): 86-89 |
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| 作者姓名： | 胡鑫 习俊通 金烨 |
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| 作者单位： | InstituteofComputerIntegratedManufacturing,ShanghaiJiaotongUniversity,Shanghai,200030 |
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| 基金项目： | SupportedbyNationalNaturalScienceFoundationofChina (5 0 3 75 0 93 ) |
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| 摘 要： | A method of 3D model reconstruction based on scattered point data in reverse engineering is presented here. The topological relationship of scattered points was established firstly, then the data set was triangulated to reconstruct the mesh surface model. The curvatures of cloud data were calculatod based on the mesh surface, and the point data were segmented by odge-basod method; Every patch of data was fitted by quadric surface of freeform surface, and the type of quadric surface was decided by parameters automatically, at last the whole CAD model was created. An example of mouse model was employed to confirm the effect of the algorithm.
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| 关 键 词： | 数学建模 离散数据 反转工程学 特征抽出 计算机辅助设计 曲率 |
Geometric Feature Extraction and Model Reconstruction Based on Scattered Data |
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| HU Xin,XI Jun-tong,JIN Ye Institute of Computer Integrated Manufacturing,Shanghai Jiaotong University,Shanghai. Geometric Feature Extraction and Model Reconstruction Based on Scattered Data[J]. Journal of Donghua University, 2004, 21(4): 86-89 |
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| Authors: | HU Xin XI Jun-tong JIN Ye Institute of Computer Integrated Manufacturing Shanghai Jiaotong University Shanghai |
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| Affiliation: | Institute of Computer Integrated Manufacturing,Shanghai J iaotong University,Shanghai,200030 |
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| Abstract: | A method of 3D model reconstruction based on scattered point data in reverse engineering is presented here. The topological relationship of scattered points was established firstly, then the data set was triangulated to reconstruct the mesh surface model. The curvatures of cloud data were calculated based on the mesh surface, and the point data were segmented by edge-based method; Every patch of data was fitted by quadric surface of freeform surface, and the type of quadric surface was decided by parameters automatically, at last the whole CAD model was created. An example of mouse model was employed to confirm the effect of the algorithm. |
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| Keywords: | Reverse engineering Scattered data Feature extraction Model reconstruction. |
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